Comment protéger les joints du carrelage pour qu'ils ne foncent pas
Réponse rapide : les joints de carrelage sont la partie la plus poreuse du sol et celle où la saleté s'accumule le plus. Un protecteur spécifique pour joints scelle cette porosité pour qu'ils n'absorbent ni eau ni taches organiques, ce qui facilite énormément le nettoyage et évite que le joint ne fonce avec le temps.
Protection des joints selon le moment
| Moment |
Produit |
Pour quoi faire |
| Pendant le jointoiement (joint cimentaire frais) |
Instant Remover |
Élimine l'excès de mortier avant qu'il ne sèche et ne laisse un voile opaque |
| Pendant le jointoiement (joint époxy frais) |
EPOXY PRO |
Même fonction qu'Instant Remover, formulé pour la résine époxy |
| Avant la pose sur matériaux absorbants |
PW10 |
Évite que les sels du mortier ne migrent vers la surface |
| Après la pose, joint déjà propre et sec |
FUGAPROOF |
Scelle le joint contre l'eau et les taches organiques ; en spray, sans dilution |
| Nettoyage en profondeur de joints déjà foncés |
Fuganet |
Redonne l'aspect original des joints cimentaires avant de protéger |
Ordre recommandé
- Pendant la pose : nettoyez l'excès de joint immédiatement avec Instant Remover ou EPOXY PRO selon le type de joint.
- Si le joint est déjà ancien et foncé : nettoyez-le en profondeur avec Fuganet.
- Une fois le joint propre et sec : appliquez FUGAPROOF pour le sceller et le protéger d'un futur encrassement.
- Vérifiez périodiquement l'effet perlant et renouvelez la protection si l'eau ne glisse plus sur le joint.
Pourquoi le joint se salit avant le carrelage
La plupart des grès cérame absorbent très peu d'eau, mais le mortier de joint est beaucoup plus poreux. Sans protection, il absorbe la saleté du lavage, la graisse de cuisine ou l'eau d'arrosage et fonce progressivement au fil des mois, même si le carrelage reste impeccable.
Questions fréquentes
Peut-on appliquer FUGAPROOF sur un joint tout juste posé ?
Il faut attendre que le joint soit complètement pris et sec, selon le délai indiqué par le fabricant du mortier de jointoiement, avant d'appliquer le protecteur.
Pourquoi mes joints ont-ils foncé au fil des années alors que je ne les ai jamais salis volontairement ?
Même sans taches évidentes, le mortier de joint absorbe peu à peu la graisse de lavage, les résidus de savon et la poussière. Sans scellement préalable, cet assombrissement progressif est normal avec le temps.
Puis-je nettoyer et protéger les joints le même jour ?
Oui, à condition que le joint soit complètement sec entre le nettoyage avec Fuganet et l'application du protecteur.
Voir aussi : nettoyage final de chantier et protecteurs anti-taches.
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